Подчеркните причастия, определите какая форма причастия используется: 1) i like books describing scientific discoveries 2) having lost his notes, he could not get ready to the seminar 3) we were impressed by the discovery described in the article

1) I like books describing (Participle I в функции определения) scientific discoveries.
2) Having (Participle I в функции обстоятельства) lost his notes, he could not get ready to the seminar
3) We were impressed (Participle II  в  составе сказуемого) by the discovery described (Participle II  в функции определения) in the article